Don't add the form-control class to all input elements, not always ne…

…eded

src/Manavo/BootstrapForms/FormBuilder.php

@@ -72,7 +72,10 @@ public function closeGroup()
 	 */
 	public function input($type, $name, $value = null, $options = array())
 	{
-		$options = $this->appendClassToOptions('form-control', $options);
+		// Don't add form-control for some input types (like submit, checkbox, radio)
+		if (!in_array($type, ['submit', 'checkbox', 'radio'])) {
+			$options = $this->appendClassToOptions('form-control', $options);
+		}
 
 		// Call the parent input method so that Laravel can handle
 		// the rest of the input set up.